No probs, I remember playing LSL6 floppy (one of the first Sierra games I played) and having terrible audio bugs with my AWE32 (device conflict, I realised years later). One day, I changed the audio to ThunderBoard (which has the tick next to it), and never had a problem again!
Same here. I played FP:FP originally on an 8-bit Soundblaster 10+ years ago, and experienced no probs there.
When I installed it a few weeks ago on my SoundBlaster 16, it was terrible. I even installed the Windows 3.1 version (which ran the audio just fine on the SB16) but I wanted it in its original DOSsy goodness...
So, I took a chance at the Thunderboard (as you said, it had a tick by it), and voila! Worked fine. And I promptly uninstalled the Win 3.1 version. :wink:
Had similar problems with the opening movie of KQ6, so I thought that it was a problem with my system.

The game played OK with Audio, but not the opening movie, so I thought I had a corrupt disc, or something just didn't like my system. But the Thunderboard option fixed the movie, too.
G